CN109261689A - Overall process solid waste method of comprehensive utilization is exploited-smelted to multi-metal sulfide - Google Patents
Overall process solid waste method of comprehensive utilization is exploited-smelted to multi-metal sulfide Download PDFInfo
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- CN109261689A CN109261689A CN201811045083.0A CN201811045083A CN109261689A CN 109261689 A CN109261689 A CN 109261689A CN 201811045083 A CN201811045083 A CN 201811045083A CN 109261689 A CN109261689 A CN 109261689A
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- Prior art keywords
- rubble
- tailings
- solid waste
- overall process
- smelted
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Links
- 238000000034 method Methods 0.000 title claims abstract description 67
- 229910052976 metal sulfide Inorganic materials 0.000 title claims abstract description 21
- 239000002910 solid waste Substances 0.000 title claims abstract description 21
- 238000002386 leaching Methods 0.000 claims abstract description 41
- 239000000203 mixture Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 30
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052802 copper Inorganic materials 0.000 claims abstract description 27
- 239000010949 copper Substances 0.000 claims abstract description 27
- 238000002474 experimental method Methods 0.000 claims abstract description 23
- 238000011049 filling Methods 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims abstract description 18
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 14
- 238000003723 Smelting Methods 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 238000002360 preparation method Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 238000012360 testing method Methods 0.000 claims description 20
- 239000002689 soil Substances 0.000 claims description 18
- 239000007921 spray Substances 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 229920006395 saturated elastomer Polymers 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 241001580935 Aglossa pinguinalis Species 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims description 2
- 238000012958 reprocessing Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims 2
- 241001504664 Crossocheilus latius Species 0.000 claims 1
- 238000003475 lamination Methods 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 12
- 239000004576 sand Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 238000005065 mining Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 206010054949 Metaplasia Diseases 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 230000015689 metaplastic ossification Effects 0.000 description 2
- 239000012452 mother liquor Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241001282153 Scopelogadus mizolepis Species 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000003978 infusion fluid Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000003921 particle size analysis Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000019086 sulfide ion homeostasis Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of multi-metal sulfides to exploit-smelt overall process solid waste method of comprehensive utilization, it meets the principle that the grain group content of national standard principle and tailings particle size greater than 0.075mm is more than 50% according to contents of heavy metal elements each in the mixture of tailings and rubble and obtains the rubble optimal quality percentage in the mixture of tailings and rubble, in the preparation process of engineering filling material, moisture content condition controls in 13%~17% range of optimum moisture content, reality is hit in layering, CBR value is determined by experiment, to ensure to reach the intensity requirement of engineering filling material.Meanwhile home-made contrivance Leaching Experiments can be carried out through the invention, detect that mixing Leaching of Heavy Metals concentration of gathering materials is below national standard and is allowed for access practical stage.The present invention realizes solid waste reducingization requirement in copper mine smelting production overall process, turns waste into wealth, while also can avoid a large amount of engineering backfill earthwork demands to the occupancy in arable land, turns bane into boon.
Description
Technical field
The present invention relates to a kind of solid waste method of comprehensive utilization, belong to the technologies such as metallurgy, construction material, Environmental Geotechnical
The solid waste method of comprehensive utilization of field more particularly to a kind of multi-metal sulfide.
Background technique
The production technology that copper mine smelting generallys use are as follows: copper sulphur bulk flotation-mixes essence and regrinds-floating tail the magnetic separation of shallow crust structures-
Technique recycles the valuable components such as copper, gold, silver, sulphur, iron.It generates in ore dressing process largely containing solid suspension, floating agent
High alkali waste water comes together in tailing ore pulp, and for plant tailing through being classified, coarse sand is used for underground filling, and microfine tailing uses concentration-height
The dry row's stockpiling of filters pressing-filter cake, overflow and filtrate are imitated, is sent to Tailings Dam.
A large amount of solid waste are generated to the overall process smelted in copper mining, comprising: 1) remaining metaling of digging up mine；2)
Multi-metal sulfide CHARACTERISTICS OF TAILINGS SAND.Especially a large amount of fine grained copper tailings, which are deposited in Tailings Dam, preferably to be disposed, and both occupied
A large amount of farmland arable lands, are easy to cause damages to surrounding enviroment.
All kinds of waste materials that overall process generates are smelted for these, how to carry out minimizing disposition, and carrying out recycling is urgently
Problem to be solved.
Summary of the invention
In view of the above shortcomings of the prior art, that the purpose of the present invention is to provide a kind of speed is fast, treating capacity is big, section
Learn reasonable comprehensive resource method, it is intended to multi-metal sulfide production overall process waste whole synthesis be utilized, be a kind of
The minimizing scheme of joint disposal is carried out to copper mining and smelting overall process waste.
It gives up in order to solve the above technical problems, exploiting-smelting overall process solid present invention employs a kind of multi-metal sulfide
Gurry method of comprehensive utilization, tailings and rubble the recycling reprocessing that this method is used to generate in copper mine smelting production process, makes
The two forms a kind of engineering filling material, and step includes: step 1, the determination of tail tabby optimal proportion: root
According to principle of the contents of heavy metal elements each in the mixture of tailings and rubble in national standard control range, suitable rubble matter is chosen
Measure percentage m1, the grain group content according to tailings particle size in the mixture of tailings and rubble greater than 0.075mm is more than 50% original
Then, suitable rubble mass percent metaling mass percent m is chosen2, take m1And m2Maximum value as tailings and rubble
Rubble mass percent in mixture；Step 2, the preparation of engineering filling material: first in tailings and rubble by above-mentioned optimal
Proportion mixing, uniform mix and paves, and in work progress, using wet process compact technique, controls the aqueous of tailings rubble composite soil
Amount layered rolling under the conditions of optimum moisture content 13%~17%；The inspection of engineering filling material: step 3 exists to mixed soil sample
Sampling carries out Parallel testing under same conditions of mixture ratios, and when inspection uses pour to strain to test, and it is dense to test heavy metal element in infusion solution
Degree is compared with national standard, and each Heavy Metallic Elements leaching concentration need to be allowed for access engineer application link lower than national standard.
In a kind of preferred embodiment of the invention, in step 1, copper tail is obtained using leaching experiment horizontal vibration method
Each contents of heavy metal elements in the mixture of sand and rubble.
In a kind of preferred embodiment of the invention, the various content of beary metal in rubble are far below national standard, tail
Part content of beary metal in sand is more than national standard.
In a kind of preferred embodiment of the invention, in step 1, is analyzed using laser particle size analyzer and obtain tailings
Particle diameter distribution.
In a kind of preferred embodiment of the invention, in step 1, the maximum particle diameter of rubble is less than or equal to 20mm.
In a kind of preferred embodiment of the invention, in step 1, the average grain diameter of rubble is no more than 5mm.
In a kind of preferred embodiment of the invention, in step 2, copper tailings and rubble are layered hit reality after mixing
Engineering filling material is formed, every layer of compacted thickness is no more than 100mm.
In a kind of preferred embodiment of the invention, in step 2, copper tailings and rubble are layered hit reality after mixing
Engineering filling material is formed, moisture content condition is controlled in optimum moisture content 13%~17%.
The beneficial effects of the present invention are:
1. two kinds of main raw material(s)s that the method in the present invention uses are all from copper mine smelting production process, production is belonged to
The two kinds of waste materials passively generated in the process such as do not have regeneration, recycle at the conditions, if a large amount of stack, will also result in ring
The combined influences such as border, ecology and hidden danger, and by this method, then organically combining two kinds of waste materials, respectively mechanical characteristic and material are special
Property, dexterously the two is integrated into one, as the substitute of engineering filling material, is realized solid in copper mine smelting production overall process
Body waste minimizing requirement, turns waste into wealth, while also can avoid a large amount of engineering backfill earthwork demands to the occupancy in arable land, becomes evil
For benefit.
2, each component part that the mixing is gathered materials: tailings and rubble crushed material specification can unite in factory according to the ratio
One prepares, it is only necessary to which commodity metaplasia can be can be realized according to engineering debulking methods, job mix compacting by transporting to engineering site
It produces.
3, it by the analysis of many experiments sample, is proved through practice test, the method for the present invention, the compacting that mixing can be made to gather materials
Intensity can reach the index request of national standard " highway subgrade design specification ", be able to satisfy the upper and lower roadbed intensity requirement of each grade road.
4, the main device that Leaching Experiments use can realize self-control with PVC drain pipe etc. for raw material, and self-testing method is simply square
Just.By experimental check repeatedly, the mixing Leaching of Heavy Metals concentration of gathering materials of this method trial-production is below national standard, part of
Index meets environment well below national standard (" hazardous waste judging standard leaching characteristic identification " (GB 5085.3-2007)) standard
Protection requires.
5. the present invention is integrated with a variety of methods such as road engineering, environmental evaluation, centrifugal modeling, and has made a part of experiment by oneself
Device prepares tailings with mining rubble and mixes the preparation method gathered materials with proposing complete set.Method is easy, is easily formed big
Scale commercial metaplasia produces, and representative and can promotional value.
Detailed description of the invention
Fig. 1 is the life that overall process solid waste method of comprehensive utilization was exploited-smelted to a kind of multi-metal sulfide of the present invention
Production. art flow chart；
Fig. 2 be a kind of multi-metal sulfide of the present invention exploit-smelt overall process solid waste method of comprehensive utilization from
Leaching test device schematic diagram processed；
Fig. 3 be a kind of multi-metal sulfide of the present invention exploit-smelt overall process solid waste method of comprehensive utilization from
Leaching test device schematic diagram processed；
In figure: 1- bracket；The upper cushion cap of 2-；3- lower cushion cap；4- high water tank；5- Leaching Experiments pipe；6- spray structure；7- goes out
Water-bound；8- cobble bed course；9- strainer；10- leaching is discharged measuring cup；11- overflow pipe；The 12- soil body is rapidly saturated water inlet pipe；13-
Valve；14- waste liquid pool；15- snap ring；16- diagonal brace；5.1- cylindrical portion；5.2- pars infundibularis；6.1- spray tube；6.2- sprays valve；
6.3- flow control switch；7.1- outlet pipe；7.2- is discharged tube valve.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Overall process solid waste comprehensive utilization side is exploited-smelted to a kind of multi-metal sulfide as shown in Figure of description
Method flow diagram, the technical scheme is that it is such,
Components identification is carried out first, using leaching experiment horizontal vibration method, respectively analysis exploitation rubble and smelting tailings leaching
Content of beary metal in liquid out；It is required that content of beary metal is no more than national standard, it is far low usually to exploit content of beary metal in rubble
In national standard, smelting tailings, then part index number can be more than national standard.(specifically can be according to different tailings sample practical measurements)
Meanwhile being no more than national standard to reach the various contents of heavy metal elements for the mixture that copper tailings and rubble are formed,
It will be more than the heavy metal element of national standard in tailings, be more than state's target value according to its content, in conjunction with the respective element content of metaling
Than rubble mass percent m in the mixture of copper tailings and rubble that converts1, it is ensured that each element content is in state in mixture
It marks within control range.Take m1And m2Stone contents Con trolling index of the maximum value as mixture.
Further, it is analyzed using the particle diameter distribution that the methods of laser particle size analyzer carries out tailings；Rubble will be exploited again
It is excellent for being crushed within partial size 5mm, and control maximum particle diameter is no more than 20mm.Partial size is screened out in 0.075mm particle below,
Remaining rubble is stand-by.It is formed according to tailings particle size, is more than 50% principle according to the grain group content for being more than control partial size 0.075mm,
Convert rubble and tailings mass ratio, obtains the metaling mass percent m for meeting engineering filling material conditions of mixture ratios2。
Tailings and rubble are pressed to the mixture of above-mentioned controlling value composition, mixture moisture control is in optimum moisture content 13%
Reality is hit in~17% range, layering, and every layer of compacted thickness is no more than 100mm, the Roadbed Soil used is filled for engineering.It takes and work
The sample that journey filling material equally matches carries out pour to strain to test comparison, by gathering materials by homemade under the conditions of not same strike solidity
Leaching Experiments device.According to soil eluviation testing regulations, test heavy metal element leaching is carried out under the conditions of acid, alkali, pure water respectively
Concentration out, leaching concentration is lower than national standard, and as qualification is gathered materials, and can be used as road, municipal roadbed and building backfill ground
Base bankets splendid substitute.
Below in conjunction with specific embodiment, the present invention is described in further detail.
Case study on implementation is as follows:
Use Atomic Absorption Spectrometer (model: GBC AVANTA M) and Atomic Fluorescence Spectrometer (model: AFS-930)
Chemical component detection is carried out to tailings sample, result is as shown in the table
1 copper tailing sand constituent content of table
According to table 1, second grade soil standard (industrial land) in " standard of soil environment quality " (GB15618-2008) is compareed
Standard, it can be found that in addition to copper coin be known as trace over standard (other than exceeded 8%), remaining element be all not above the standard regulation
Industrial land standard.
Using laser particle size analysis, the CHARACTERISTICS OF TAILINGS SAND particle composition of sampling is mainly distributed within the scope of 0~100um, is less than
The particle of 0.075mm accounts for 95%, is almost made of particle.
The determination of rubble minimum proportion m is specifically described below.
Step 1 (calculates) according to copper percentage composition principle is reduced: because waste mining rock is nearly no detectable copper
Content, in this way in order to ensure copper tailings --- the copper content ratio of macadam-aggregate mix is no more than above-mentioned standard and is changed according to preceding method
Calculate the rubble mass percent m in the mixture of tailings and rubble1< 10%.
Step 2 (reaches engineering filling material requirement according to particle composition to calculate): filling wanting for base material according to road
It asks, needs to increase coarse aggregate and make sandy soil filler.Therefore, it is formed and is converted according to partial size, it is (big at least to add coarse aggregate
In 0.075mm partial size) minimum content m2> 20%.
According to above-mentioned analysis, rubble minimum is selected to match m=20%, i.e. metaling and copper tailings control mass ratio is 20:
80, wherein metaling after waste mining rock crushing and screening by obtaining, as shown in Figure 1.
Copper tailings and macadam-aggregate mix engineering mechanics compliance test result
Copper tailings is mixed with rubble by said ratio, compaction in layers, has electronic hit using test instrument and equipment
Real instrument (model: STDJ-3A) carries out CBR hit-solid experiment (parallel three groups), result such as following table.
Table 2CBR experimental result (parallel three groups)
According to table 2, CBR=7.2 is surveyed, is compareed " highway subgrade design specification " (JTGD30-2015), it is public according to specification
Road embankment, roadbed filler minimum strength requires and compaction requirement (such as table 3 and table 4), it is known that the mixture meets code requirement.
3 roadbed minimum california bearing ratio (code requirement value) of table
4 embankment minimum california bearing ratio (code requirement value) of table
Copper tailings and macadam-aggregate mix environment impact effect are verified
It is influenced to analyze the environment of copper tailings and macadam-aggregate mix, mixture is subjected to Leaching Experiments, experimental provision is adopted
It often makes, can be made by oneself according to this programme, simple and easy to do, experimental rig is as shown in Figure 2 of materials such as PVC drain pipes of engineering.
By the copper tailings of moisture content 15% -- then macadam-aggregate mix is used as in different compactnesss filling said sample device
(pH value of pure water is 7 to leaching spray head leaching solution；Natural rainfall is simulation water, uses SO4 2-: NO3 ?=9:1's (mass ratio)
The acid solution of acid mother liquor preparation PH=5.6).Leaching speed reference " chemical pesticide environmental safety assessment test rule the 5th
Point: soil eluviation test " GB/T 31270.5-2014,250.4mm (in June, 1954) is reached in conjunction with this area day maximum rainfall,
One hour maximum rainfall reaches 52.2mm, and leaching speed is 0.87mm/min, then uses Atomic Absorption Spectrometer (instrument model
TAS-990 the exudation concentration of its heavy metal) is surveyed, as shown in the table.
Table 5 oozes out concentration analysis
Note: the pH value of pure water is 7；Natural rainfall is simulation water, uses SO4 2-: NO3 ?The acid mother liquor of=9:1 (mass ratio)
Prepare the acid solution of PH=5.6.
Other than three Heavy Metallic Elements shown in the table 5 have exudation, other heavy metal elements all do not ooze out.Three kinds of elements
Seepage discharge is very small, " hazardous waste judging standard leaching characteristic identification " (GB 5085.3-2007) standard is far below, to environment
Influence can be ignored.
The leaching device that the present invention uses is a kind of leaching test device that detection is influenced for engineering material environment, packet
Bracket 1 is included, cushion cap 2 and lower cushion cap 3 are connected on bracket 1, high water tank 4 is connected on upper cushion cap 2 (for collecting leaching original
Liquid), Leaching Experiments pipe 5 is connected in lower cushion cap 3, Leaching Experiments pipe 5 includes interconnected cylindrical portion 5.1 (for loading work
Journey filling material) and pars infundibularis 5.2, the upper end of cylindrical portion 5.1 be provided with the spray structure 6 being connected to high water tank 4, pars infundibularis
5.2 lower end is provided with water flowing out structure 7, and the middle part of pars infundibularis 5.2 is provided with cobble bed course 8 and strainer 9, under water flowing out structure 7
End is provided with leaching water outlet measuring cup 10.
Further, in a kind of preferred embodiment of the invention, it is arranged between high water tank 4 and Leaching Experiments pipe 5
There is the soil body to be rapidly saturated water inlet pipe 12, the soil body be rapidly saturated 12 one end of water inlet pipe be connected to high water tank 4, the other end and leaching
Experiment tube 5 is connected to, and the soil body, which is rapidly saturated in water inlet pipe 12, is provided with valve 13.The soil body is rapidly saturated 12 one end of water inlet pipe and spray
The spray tube 6.1 of structure 6 is connected to, and the other end is connected to the pars infundibularis 5.2 of Leaching Experiments pipe 5.
The upper end of cylindrical portion 5.1 is provided with the overflow pipe 11 communicated therewith.The lower section of overflow pipe 11 is provided with waste liquid pool 14.
Spray structure 6 includes the spray tube 6.1 for having spray head, for the spray valve 6.2 of opening and closing and for controlling flow and spray speed
The flow control switch 6.3 of degree.Water flowing out structure 7 includes outlet pipe 7.1 and water outlet tube valve 7.2.It is connected with and is used in lower cushion cap 3
Connect the snap ring 15 of Leaching Experiments pipe 5.Leaching Experiments pipe 5 is pvc pipe or glass tube.Between bracket 1 and upper cushion cap 2 and bracket 1
Diagonal brace 16 is provided between lower cushion cap 3.
It should be understood that the above is only a specific embodiment of the invention, but protection scope of the present invention is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the invention, the variation that can readily occur in or is replaced
It changes, should be covered by the protection scope of the present invention.
Claims (10)
1. overall process solid waste method of comprehensive utilization is exploited-smelted to a kind of multi-metal sulfide, it is characterised in that: this method
Tailings for will generate in copper mine smelting production process and rubble recycling reprocessing both make to be formed a kind of engineering and fill material
Material,
Its step includes:
Step 1, the determination of tail tabby optimal proportion:
According to principle of the contents of heavy metal elements each in the mixture of tailings and rubble in national standard control range, it is suitable to choose
Rubble mass percent m1,
Grain group content according to tailings particle size in the mixture of tailings and rubble greater than 0.075mm is more than 50% principle, is chosen
Suitable rubble mass percent metaling mass percent m2,
Take m1And m2Maximum value as the rubble mass percent in the mixture of tailings and rubble；
Step 2, the preparation of engineering filling material:
It mixes, uniform mix and paves by above-mentioned optimal proportion in tailings and rubble first, in work progress, be compacted using wet process
Technology, the water content of control tailings rubble composite soil layered rolling under the conditions of optimum moisture content 13%~17%；
Step 3, the inspection of engineering filling material:
Mixed soil sample is sampled under same conditions of mixture ratios and carries out Parallel testing, pour to strain to test is used when inspection, test is leached molten
Heavy metal element concentration and national standard compare in liquid, and each Heavy Metallic Elements leaching concentration need to be allowed for access lower than national standard
Engineer application link.
2. overall process solid waste comprehensive utilization side is exploited-smelted to a kind of multi-metal sulfide according to claim 1
Method, it is characterised in that: in step 1, each heavy metal in the mixture of tailings and rubble is obtained using leaching experiment horizontal vibration method
Constituent content.
3. overall process solid waste comprehensive utilization side is exploited-smelted to a kind of multi-metal sulfide according to claim 2
Method, it is characterised in that: the various content of beary metal in rubble are far below national standard, and the part content of beary metal in tailings is more than
National standard.
4. overall process solid waste comprehensive utilization side is exploited-smelted to a kind of multi-metal sulfide according to claim 1
Method, it is characterised in that: in step 1, the particle diameter distribution for obtaining tailings is analyzed using laser particle size analyzer.
5. overall process solid waste comprehensive utilization side is exploited-smelted to a kind of multi-metal sulfide according to claim 1
Method, it is characterised in that: in step 1, the maximum particle diameter of rubble is controlled within 20mm.
6. overall process solid waste comprehensive utilization side is exploited-smelted to a kind of multi-metal sulfide according to claim 1
Method, it is characterised in that: in step 1, the average grain diameter of rubble is no more than 5mm.
7. overall process solid waste comprehensive utilization side is exploited-smelted to a kind of multi-metal sulfide according to claim 1
Method, it is characterised in that: in step 2, tailings and rubble are layered hit real formation engineering filling material after mixing, and every lamination is real
Thickness is no more than 100mm.
8. overall process solid waste comprehensive utilization side is exploited-smelted to a kind of multi-metal sulfide according to claim 7
Method, it is characterised in that: in step 2, roll → the stone roller of static pressure when layered rolling using bull-dozer static pressure → vibratory roller vibration
Pressure technique.
9. overall process solid waste comprehensive utilization side is exploited-smelted to a kind of multi-metal sulfide according to claim 1
Method, it is characterised in that: in step 3, experimental rig used by pour to strain to test is a kind of for the influence detection of engineering material environment
Leaching test device comprising bracket (1) is connected with cushion cap (2) and lower cushion cap (3) on the bracket (1), it is described on hold
It is connected on platform (2) high water tank (4), is connected with Leaching Experiments pipe (5) on the lower cushion cap (3), the Leaching Experiments pipe (5)
It is provided with and the high position including interconnected cylindrical portion (5.1) and pars infundibularis (5.2), the upper end of the cylindrical portion (5.1)
The spray structure (6) of water tank (4) connection, the lower end of the pars infundibularis (5.2) is provided with water flowing out structure (7), the pars infundibularis
(5.2) cobble bed course (8) and strainer (9) are provided in the middle part of, the lower end of the water flowing out structure (7) is provided with leaching water outlet measuring cup
(10)。
10. overall process solid waste comprehensive utilization side is exploited-smelted to a kind of multi-metal sulfide according to claim 9
Method, it is characterised in that: be provided with the soil body between the high water tank (4) and the Leaching Experiments pipe (5) and be rapidly saturated water inlet pipe
(12), the soil body be rapidly saturated water inlet pipe (12) one end be connected to the high water tank (4), the other end and the Leaching Experiments
(5) connection is managed, the soil body is rapidly saturated in water inlet pipe (12) and is provided with valve (13).
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| US5286427A (en) * | 1993-01-06 | 1994-02-15 | George Koumal | Method of environmental cleanup and producing building material using copper mine tailings waste material |
| CN104931656A (en) * | 2015-06-25 | 2015-09-23 | 桂林理工大学 | Tailing sand leaching simulator |
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| CN107100049A (en) * | 2017-06-07 | 2017-08-29 | 安徽省交通规划设计研究总院股份有限公司 | A kind of clay improves the construction method of CHARACTERISTICS OF TAILINGS SAND roadbed filling |
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2018
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|---|---|---|---|---|
| US5286427A (en) * | 1993-01-06 | 1994-02-15 | George Koumal | Method of environmental cleanup and producing building material using copper mine tailings waste material |
| CN104931656A (en) * | 2015-06-25 | 2015-09-23 | 桂林理工大学 | Tailing sand leaching simulator |
| CN106630816A (en) * | 2016-10-14 | 2017-05-10 | 鞍钢集团矿业有限公司 | Method for preparing road base mixture by utilizing waste ore rock and iron tailings and construction method |
| CN107100049A (en) * | 2017-06-07 | 2017-08-29 | 安徽省交通规划设计研究总院股份有限公司 | A kind of clay improves the construction method of CHARACTERISTICS OF TAILINGS SAND roadbed filling |
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